<nb-card>
  <nb-card-body>
    <nb-alert status="danger" size="xxsmall">You have been successfully authenticated!</nb-alert>
    <nb-alert status="primary" size="small">You have been successfully authenticated!</nb-alert>

    <nb-alert status="success" size="xxlarge">You have been successfully authenticated!</nb-alert>
  </nb-card-body>
</nb-card>
